package flib.util.os;

public class Bytes {
	public static String substring(String src, int start_idx, int end_idx){  
        byte[] b = src.getBytes();  
        String tgt = "";  
        for(int i=start_idx; i<=end_idx; i++){  
            tgt +=(char)b[i];  
        }  
        return tgt;  
    }
}
